KR101236792B1 - Circulation cooling apparatus for solar cell module - Google Patents

Abstract

PURPOSE: A circulation type cooling device for a solar cell module is provided to prevent the temperature rise of fluid by cooling the solar cell module through the circulation of the fluid. CONSTITUTION: A first cooling chamber(10) fills fluid. A supply pipe(30) supplies the fluid to a first cooling chamber. A discharge pipe(50) discharges the heated fluid to the outside of the first cooling chamber. A second cooling chamber(70) is connected to the supply pipe and the discharge pipe. A second cooling chamber cools the heated fluid and supplies the cooled fluid to the supply pipe.

Description

Circulating chiller for solar modules {CIRCULATION COOLING APPARATUS FOR SOLAR CELL MODULE}

The present invention provides a circulation cooling device for a photovoltaic module that can increase the performance and life of the photovoltaic module by preventing the deterioration of the photovoltaic module by cooling the photovoltaic module by water cooling while spontaneously circulating due to convection caused by specific gravity. It is about.

In general, solar cells convert solar light into electrical energy using the properties of semiconductors, which are rich in energy resources and have no problems with environmental pollution, thus replacing the depletion of existing energy resources such as oil and coal. It is attracting attention as an alternative energy to do.

These solar cells are the smallest unit that generates electricity by using solar light, and the solar modules are connected to the solar cells in series and in parallel in order to obtain proper voltage and current, and together with fillers and glass to protect from the external environment. Compression is produced in the form of a module.

However, the conversion efficiency of the solar cell is 10-20%. The reason why the conversion efficiency is lowered is that the solar cell cannot convert all the light into electricity. In addition, the temperature of the photovoltaic module increases as light energy that is not converted into electrical energy is converted into heat. This loss accounts for about 60% of the total.

Therefore, the output of the solar module decreases as the temperature rises. If the power generation efficiency is 100% at 15 ° C., the output of 0.45 to 0.55% decreases every time the temperature rises by 1 degree. That is, since the temperature and voltage of the solar cell are inversely proportional to each other, as the temperature increases, the voltage decreases and the power generation output decreases. Therefore, there is a problem that the hot summer power generation output is lower than the solar radiation amount.

In order to solve this problem, planting grass around the solar module or applying an air-cooling method by natural wind to lower the temperature, but the temperature saving effect is insignificant.

In addition, the temperature can be reduced by the forced cooling technology by the equipment such as cooling fan, but due to the cost of electricity and the need for the operation and maintenance of the equipment, due to excessive management cost than the effect that can be achieved by temperature reduction There was a problem that could not be realized.

The problem to be solved by the present invention is to circulate in the convection phenomenon caused by the specific gravity difference, cooling the solar module by water cooling to prevent degradation of the solar module to increase the performance and life of the solar module circulation for the solar module It is to provide a cooling device.

Another problem of the present invention is to circulate cooling for solar modules that can optimally maintain the cooling efficiency by preventing the fluid flowing through the cooling tank is heated by the external temperature after cooling the solar module to increase the fluid temperature It is to provide a device.

The present invention is the first cooling chamber 10 is filled with a fluid for cooling the solar module (S); A supply pipe 30 connected to one side of the first cooling chamber 10 to supply a fluid to the inside of the first cooling chamber 10; A discharge pipe 50 connected to the other side of the first cooling chamber 10 to conduct heat of the solar module S to discharge the heated fluid to the outside of the first cooling chamber 10; And a second cooling chamber 70 connected to both sides of the supply pipe 30 and the discharge pipe 50 and cooling the heated fluid discharged from the discharge pipe 50 to the supply pipe 30.

In order to cool the photovoltaic module by naturally circulating the fluid due to convection caused by the specific gravity difference generated during the heat exchange process of the fluid in the first cooling chamber and the second cooling chamber, the first cooling chamber 10 is a photovoltaic module. In order to raise the fluid whose weight is lightened by the heat of (S), it is fixed in the inclined state while being in close contact with the rear surface of the solar module (S) installed inclined toward the sun, the second cooling chamber 70 is the solar module (S) In order to move the fluid whose weight is lightened by the temperature difference of the fluid itself cooled to the supply pipe 30, one side connected to the supply pipe 30 is inclined to be higher than the other side connected to the discharge pipe 50,

The first cooling chamber 10 includes a top plate 11 fixed while being in surface contact with the rear surface of the solar module (S); A protrusion 14 is formed to protrude to one side so that the inner space 12 is joined to the top plate 11 and coupled to the inner space 12. The supply pipe 30 and the discharge pipe 50 are provided at both sides of the protrusion 14. A lower plate 13 to be connected; And both ends are directed toward the supply pipe 30 and the discharge pipe 50 in the internal space 12 such that the fluid supplied from the supply pipe 30 is dispersed in the internal space 12 of the lower plate 13 and flows into the discharge pipe 50. And while being spaced at a predetermined interval, a plurality of partition walls 15 formed in the lower plate 13 in contact with the upper plate 11 to transfer the heat of the upper plate 11 to the fluid;
The first cooling chamber 10 further includes a chamber heat insulating means 20 for preventing the external temperature from being transmitted to the fluid flowing in the inner space 12, and the chamber heat insulating means 20 may include, for example, a lower plate 13. Insulating plate 21 is bonded to and bonded to); And a cover part which protrudes from one side of the heat insulating plate 21 to cover the protrusions 14 of the lower plate 13 while being spaced apart from each other so that the heat insulating space 22 is formed outside the protrusion 14 of the lower plate 13 ( 23);

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Preferably, the first cooling chamber 10 further includes a sealing means 24 for sealing the edge 25 of the heat insulating plate 21 to the edge 18 of the lower plate 13, wherein the sealing means 24 is for example. An insulation groove 26 formed along a lower surface of the insulation plate 21 edge 25; A lower plate groove 27 formed along an upper surface of the edge 18 of the lower plate 13 so as to face the heat insulating groove 26; And a packing ring 28 that is inserted into the heat insulating groove 26 and the lower plate groove 27 at the same time to seal the edge 25 of the heat insulating plate 21 and the edge 18 of the lower plate 13.

Preferably, the supply pipe 30 or the discharge pipe 50 further includes a heat insulating means 40 to prevent the external temperature is transmitted to the fluid flowing through, the heat insulating means 40, for example, the supply pipe 30 or the discharge pipe Insulation pipe 41 composed of an inner diameter larger than the diameter of the supply pipe 30 or the discharge pipe 50 so that the 50 is inserted; Pluralities fixed to both ends of the heat insulating pipe 41 and both sides of the supply pipe 30 and the discharge pipe 50 in a state of preventing the outer circumferential surface of the supply pipe 30 or the discharge pipe 50 from contacting the inner circumferential surface of the heat insulating pipe 41. It includes; the fixing member (42).

Preferably, the fixing member 42 includes, for example, a disk 44 in which a through hole 43 is formed so that the supply pipe 30 and the discharge pipe 50 pass therethrough; A cylindrical inner tube 45 extending from the through hole 43 of the disc 44 and fitted to the outer circumferential surface of the supply pipe 30 to be fixed; And a cylindrical outer tube 46 extending from an edge of the disc 44 to be fitted to and fixed to an end portion of the heat insulation pipe 41.

Preferably, the fixing member 42 elastically seals between the end of the heat insulating pipe 41 and the outer circumferential surface of the supply pipe 30 so that a vacuum is formed between the end of the heat insulating pipe 41 and the outer circumferential surface of the supply pipe 30. It may be composed of rubber or urethane rubber.

Preferably, the heat insulating means 40 is filled between the end of the heat insulating pipe 41 and the outer circumferential surface of the supply pipe 30 and the end of the heat insulating pipe 41 to block the movement of heat between the outer peripheral surface of the supply pipe 30 ( 60); and the filler 60 is characterized in that any one of styrofoam, cork or foamed plastic.

Preferably, the second cooling chamber 70 may include, for example, a main body 71 in which an accommodation space 72 is formed therein, and the supply pipe 30 and the discharge pipe 50 are connected to both sides in a penetrating state; A supply cylinder 73 connected to a side of the supply pipe 30 in a state accommodated in the accommodation space 72 of the main body 71 to supply a fluid to the supply pipe 30; A recovery container 75 having a side connected to the discharge pipe 50 in a state accommodated in the accommodation space 72 of the main body 71 while being spaced apart from the supply container 73 by a predetermined interval to recover the fluid discharged from the discharge pipe 50; A plurality of guide tubes 77 connected at both ends to the supply container 73 and the recovery container 75 while being spaced at a predetermined interval so as to guide the fluid recovered to the recovery container 75 to the supply container 73; And a cooling material 79 filled in the receiving space 72 of the main body 71 to contact the plurality of guide tubes 77 to cool the plurality of guide tubes 77.

In addition, the present invention further includes a fluid circulation means for forcibly circulating the fluid when the fluid temperature of the first cooling chamber 10 rises above the set temperature, the fluid circulation means 80 may include, for example, a supply pipe ( 30) or a pump 81 connected to the discharge pipe 50 to pump the fluid and force the flow through; A temperature sensor 83 installed in the internal space 12 of the first cooling chamber 10 to sense a fluid temperature of the internal space 12; And a control unit 85 for controlling the operation of the pump 81 by determining whether the sensing temperature of the temperature sensor 83 is lower or higher than a preset reference temperature.

Preferably, the fluid circulation means circulates the fluid at high speed when the fluid temperature of the first cooling chamber 10 is higher than the set reference temperature, thereby rapidly increasing the internal temperature of the first cooling chamber 10. It further comprises a; rapid cooling means 82 for lowering, the rapid cooling means 82, for example, the sensing unit 84 for detecting the temperature when the temperature sensor 83 senses a higher temperature than the set reference temperature; A timer 86 counting a sensing time of the sensing unit 84; And comparing the detection time counted by the timer 86 with a preset reference time to determine whether the detection time exceeds the reference time, and when the detection time exceeds the reference time, the controller 85 controls the pump 81 for a predetermined time. And a high speed signal transmitter 88 for transmitting a high speed signal to the control unit 85 to control at high speed.

According to the present invention, since the fluid is naturally circulated due to the convection caused by the specific gravity difference generated during the heat exchange of the fluid in each cooling chamber without a separate power energy for forced circulation of the fluid, the solar module is cooled by water cooling. It is possible to prevent degradation of the optical module to increase the performance and life of the solar module.

The present invention can maintain the cooling efficiency by preventing the fluid flowing through the cooling tank after cooling the solar module is heated by the external temperature to increase the fluid temperature.

1 is a view schematically showing the configuration of the present invention.
Figure 2 is a cross-sectional view showing the main portion of the first cooling chamber applied to the present invention.
Figure 3 is an exploded perspective view of the first cooling chamber applied to the present invention.
Figure 4 is an exploded perspective view of the chamber insulation means applied to the present invention.
Figure 5 is a partial cross-sectional view showing the assembly process of the first cooling chamber and the chamber insulation means of the present invention.
Figure 6 is a view showing an installation state of the thermal insulation means applied to the present invention.
7 is a cross-sectional view schematically showing the configuration of a second cooling chamber applied to the present invention.
Figure 8 is a block diagram showing the configuration of the fluid circulation means and the rapid cooling means of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in FIGS. 1 and 2, the first cooling chamber 10 is filled with a fluid for cooling the solar module S. Here, the first cooling chamber 10 is preferably fixed in an inclined state while being in close contact with the rear surface of the photovoltaic module S installed to be inclined toward the sun so that the fluid whose weight is lightened by the heat of the photovoltaic module S is raised. Do.

The first cooling chamber 10 includes an upper plate 11, a lower plate 13, and a partition wall 15.

The top plate 11 is fixed while being in surface contact with the rear surface of the solar module (S). This, the top plate 11 is preferably composed of a metal plate so that the heat of the solar module (S) is conducted.

The lower plate 13 is joined to the upper plate 11 and is coupled to the protrusion 14 is formed to protrude to one side so that the inner space 12 is filled with the fluid is filled, the supply pipe 30 and the both sides of the protrusion 14 Discharge pipe 50 is connected. Here, the protrusion 14 may be formed on the lower plate 13 by drawing.

Here, the lower plate 13 may be fastened to the upper plate 11 by the fastening means 17. The fastening means 17 is to fasten the airtight by sealing the edge 18 of the lower plate 13 in close contact with the edge 16 of the upper plate 11 so that the inner space 12 of the lower plate 13 is blocked from the outside, It may consist of a bolt penetrating the edges 16 and 18 and a nut coupled to the bolt. Alternatively, the upper plate 11 and the lower plate 13 may be fastened by riveting or welding instead of the fastening means 17.

As shown in FIGS. 2 and 3, the partition wall 15 is configured to have a plurality of fluids supplied from the supply pipe 30 so as to flow through the discharge pipe 50 while being dispersed in the inner space 12 of the lower plate 13. In the space 12, both ends are spaced at predetermined intervals toward the supply pipe 30 and the discharge pipe 50, and the lower plate 13 in a state of being in contact with the upper plate 11 to transfer the heat of the upper plate 11 to the fluid. Is formed. Such, the partition wall 15 can be distributed through the fluid to flow if composed of a plurality. Deformation of the lower plate 13 can be prevented when the pressure is increased in the internal space 12 by the fluid having a temperature rising. In addition, the partition wall 15 may be formed of a metal plate and integrally formed on the lower plate 13 by welding. In particular, the partition wall 15 prevents deformation of the lower plate 13 and the upper plate 11 at the same time in response to an increased pressure in the inner space 12 when the upper plate 11 and the spot welding in the state formed on the lower plate 13. can do. In addition, when the partition wall 15 is fixed in contact with the top plate 11, the heat of the top plate 11 is easily transferred to the fluid, thereby increasing the cooling efficiency.

As such, the first cooling chamber 10 is fixed in the surface contact state on the rear surface of the photovoltaic module S which is installed to be inclined so that the light receiving surface faces south, so that the heat of the photovoltaic module S is transferred to the fluid. As the heated fluid rises, it is circulated in the order of the discharge pipe 50, the second cooling chamber 70, and the supply pipe 30 which will be described later.

The supply pipe 30 is connected to one side of the first cooling chamber 10 to supply fluid to the inside of the first cooling chamber 10. That is, the supply pipe 30 connects the first cooling chamber 10 and the second cooling chamber 70 in a communication state so that the fluid can move from the second cooling chamber 70 to the first cooling chamber 10. .

The discharge pipe 50 is connected to the other side of the first cooling chamber 10 to conduct heat of the solar module S so that the heated fluid is discharged to the outside of the first cooling chamber 10. That is, the discharge pipe 50 connects the first cooling chamber 10 and the second cooling chamber 70 in a communication state so that the fluid can move from the first cooling chamber 10 to the second cooling chamber 70. .

The supply pipe 30 or the discharge pipe 50 may further include a check valve CV that flows in only one direction without the fluid flowing back. That is, the check valve CV may be installed in the supply pipe 30 or the discharge pipe 50 so that the fluid moves while circulating in the direction of the discharge pipe 50 only in the supply pipe 30.

As shown in FIG. 7, the second cooling chamber 70 is connected to both sides of the supply pipe 30 and the discharge pipe 50 and cools the heated fluid discharged from the discharge pipe 50 to supply the supply pipe 30. will be. Here, the second cooling chamber 70 has a discharge pipe connected to the supply pipe 30 so that the fluid whose weight is lightened by the temperature difference of the fluid itself cooling the solar module S may be moved up to the supply pipe 30. It is preferable to be inclined so as to be in a state higher than the other side connected to 50.

The second cooling chamber 70 includes a main body 71, a supply cylinder 73, a recovery cylinder 75, a guide tube 77, and a cooling material 79.

The main body 71 has an accommodating space 72 formed therein, and the supply pipe 30 and the discharge pipe 50 are connected to both sides in a penetrating state. This, the body 71 is preferably composed of a metal case to discharge the heat of the cooling material 79 filled in the receiving space 72 to the outside. That is, when the body 71 is formed of a metal case, heat conduction may be easily performed, and thus heat of the cooling material 79 may be released into the air. In particular, when buried underground can be more easily released heat on a hot summer day.

The supply cylinder 73 is connected to the supply pipe 30 in a state accommodated in the receiving space 72 of the main body 71 to supply fluid to the supply pipe 30.

Recovery container 75 is connected to the discharge pipe 50 in the state accommodated in the receiving space 72 of the main body 71 while being spaced apart from the supply container 73 to recover the fluid discharged from the discharge pipe 50. .

Guide tube 77 is composed of a plurality of the both ends are connected to the supply cylinder 73 and the recovery container 75 while being spaced at a predetermined interval to guide the fluid recovered in the recovery container 75 to the supply container 73. .

The cooling material 79 is filled in the receiving space 72 of the body 71 so as to contact the plurality of guide tubes 77 to cool the plurality of guide tubes 77. Such a cooling material 79 is preferably composed of water having high conductivity. Alternatively, any one of glycerin, methyl alcohol, ethyl alcohol and castor oil may be used.

Thus, the operation and effects of the present invention constituted are as follows.

First, as shown in FIGS. 1 to 3, the first cooling chamber 10 is fixed in a state of being in surface contact with the rear surface of the solar module S, and thus the solar module S delivers light energy of the sun. The solar heat is transferred to the top plate 11 when converted into. The upper plate 11 transmits heat transmitted from the solar module S to the partition wall 15. The partition wall 15 may transfer heat transferred from the upper plate 11 to the fluid. That is, since the partition wall 15 is configured in plural, the heat conducting evenly from the upper plate 11 like the heat radiating fins is transferred to the fluid, so that the heat exchange can be made in a relatively short time, thereby increasing the cooling efficiency.

Subsequently, the discharge pipe 50 guides the movement of the fluid so that the fluid heated by the heat transferred from the partition wall 15 is discharged to the outside of the first cooling chamber 10. That is, the discharge pipe 50 guides the heated fluid to be discharged to the second cooling chamber 70.

Subsequently, as shown in FIG. 7, the fluid discharged from the discharge pipe 50 is recovered in the recovery container 75 of the second cooling chamber 70. The guide tube 77 guides the fluid recovered in the recovery container 75 to be moved to the supply container 73. That is, the guide tube 77 is composed of a plurality of to distribute the fluid in the recovery container 75 is to guide the supply cylinder 73. At this time, the guide tube 77 is in contact with the cooling material 79 filled in the main body 71 as a whole. Thus, the guide tube 77 is in contact with the cooling material 79 in a state of dispersing the fluid flowing through it, so that the heat of the fluid can be easily conducted to the cooling material 79.

In addition, the supply cylinder 73 guides the fluid cooled by the cooling material 79 to the supply pipe 30. Finally, the supply pipe 30 guides the fluid flowing through the cooled fluid to be supplied to the internal space 12 of the first cooling chamber 10.

As described above, the present invention is the first cooling chamber 10, the discharge pipe 50 by the convection action by the specific gravity difference generated in the process of heat exchange between the refrigerant in the first cooling chamber 10 and the second cooling chamber 70. Since the fluid is naturally circulated in the order of the second cooling chamber 70 and the supply pipe 30, the solar module S may be easily cooled by water cooling to increase power generation efficiency.

In addition, the above-described first cooling chamber 10 further includes a chamber heat insulating means 20 as shown in FIGS. 4 and 5. The chamber insulation means 20 is for preventing the external temperature from being transmitted to the fluid flowing in the internal space 12 of the first cooling chamber 10. For example, the heat insulation plate 21 and the cover part 23 are provided. It includes.

The heat insulating plate 21 is joined to the lower plate 13 and joined. At this time, the heat insulating plate 21 may be fastened by the above-described fastening means 17. Such a heat insulating plate 21, it is preferable that the through-hole 25 is formed on both sides so that the above-described supply pipe 30 and the discharge pipe 50 penetrates. Of course, the through hole 25 is preferably installed or sealed not shown rubber ring in order to prevent the air flow to the outer surface of the inserted supply pipe 30 or the discharge pipe 50.

The cover part 23 is formed to protrude to one side from the heat insulating plate 21 so that the heat insulating space 22 is formed outside the protrusion 14 of the lower plate 13, in a state of being spaced apart from the protrusion 14 of the lower plate 13. Cover it.

As such, when the heat insulating plate 21 is coupled to the lower plate 13, the cover 23 covers the protrusion 14 so that the heat insulating space 22 is formed, so that the outside temperature is increased in the internal space 12 of the protrusion 14. Cannot be delivered to fluid filled in That is, in the case of a hot summer day, the fluid may easily cool the solar module S shown in FIG. 1 without being affected by a relatively high room temperature. At this time, the insulating space 22 may be filled with any one of styrofoam, cork or foamed plastic.

In addition, as shown in FIGS. 4 and 5, the first cooling chamber 10 further includes a sealing means 24. The sealing means 24 is for sealing the edge 25 of the heat insulating plate 21 to the edge 18 of the lower plate 13, for example, the heat insulating groove 26, the lower plate groove 27 and the packing ring 28. ).

The insulation groove 26 is formed along the lower surface of the edge 25 of the insulation plate 21.

The lower plate groove 27 is formed along the upper surface of the edge 18 of the lower plate 13 so as to face the heat insulating groove 26.

The packing ring 28 is inserted into the heat insulating groove 26 and the lower plate groove 27 at the same time to seal the edge 25 of the heat insulating plate 21 and the edge 18 of the lower plate 13.

In this way, the sealing means 24 is sealed so as not to generate a gap in the surface contact portion of the heat insulating plate 21 and the lower plate 13, so that the air filled in the above-described heat insulating space 22 does not leak to the outside, Also prevents air from penetrating into the adiabatic space 22. Therefore, the air filled in the adiabatic space 22 can easily prevent the external temperature from being transferred to the fluid.

That is, the packing ring 28 is connected to the nut of the fastening means 17 in a state where the bolt, which is the aforementioned fastening means 17, penetrates the edge 25 of the heat insulation plate 21 and the edge 18 of the lower plate 13. When combined, it is fixed while being compressed between the edge 25 of the heat insulating plate 21 and the edge 18 of the lower plate 13 to more tightly seal between the edge 25 and the edge 18.

In addition, as shown in FIG. 6, the supply pipe 30 or the discharge pipe 50 further includes a heat insulating means 40. The heat insulation means 40 is for preventing the external temperature from being transmitted to the fluid flowing through, for example, the heat insulation pipe 41 and the fixing member 42 are included.

The heat insulation pipe 41 is comprised with the inner diameter larger than the diameter of the supply pipe 30 or the discharge pipe 50 so that the supply pipe 30 or the discharge pipe 50 may be inserted.

Fixing member 42 is composed of a plurality of the both ends of the insulating pipe 41 and the supply pipe 30 or the state in order to prevent the outer peripheral surface of the supply pipe 30 or the discharge pipe 50 to contact the inner peripheral surface of the insulating pipe 41 It is intended to be fixed to both sides of the discharge pipe 50, for example, includes a disk 44, the inner pipe 45 and the outer pipe 46.

The disc 44 has a through hole 43 through which the supply pipe 30 and the discharge pipe 50 pass.

The inner tube 45 is cylindrical and is formed to extend from the through hole 43 of the disc 44 to be fitted to the outer circumferential surface of the supply tube 30 to be fixed.

The outer tube 46 is cylindrical and extends from the edge of the disc 44 to be fitted to the end of the insulating pipe 41 to be fixed.

As such, the heat insulating means 40 is the inner tube 45 is fitted to the supply pipe 30 or the discharge pipe 50, so that the outer tube 46 is fitted to the end of the heat insulating pipe 41, the disc 44 is It seals between the outer peripheral surface of the supply pipe 30 and the inner peripheral surface of the heat insulation pipe 41. Therefore, since the heat insulating means 40 is formed in plural to close both ends of the heat insulating pipe 41, air is filled between the outer circumferential surface of the supply pipe 30 or the discharge pipe 50 and the inner circumferential surface of the heat insulating pipe 41. That is, the filled air can prevent the external temperature from being transmitted to the fluid flowing through the supply pipe 30 or the discharge pipe 50.

Here, the fixing member 42 may be made of rubber or urethane rubber. Therefore, the fixing member 42 elastically seals between the end of the heat insulation pipe 41 and the outer circumferential surface of the supply pipe 30 or the discharge pipe 50, and thus, the end of the heat insulation pipe 41 and the supply pipe 30 or the discharge pipe 50. It is possible to prevent the loss of air charged between the outer circumferential surface and the infiltration of external air. That is, the filled air can prevent the external temperature from being transmitted to the supply pipe 30 or the discharge pipe 50.

At this time, as shown in Figure 6, the heat insulating means 40 further comprises a filler (60). This, the filler 60 is the end of the heat insulating pipe 41 and the end of the heat insulating pipe 41 and the supply pipe 30 or discharge pipe 50 to block the movement of heat between the end of the heat supply pipe 30 or the outer peripheral surface of the discharge pipe 50. Filled between the outer circumferential surface of, may be composed of any one of styrofoam, cork or foamed plastic. Here, the filler 60 can not only block the transmission of the external temperature, but also can keep the external appearance of the supply pipe 30 or the discharge pipe 50 firmly and mitigate external shocks.

Meanwhile, the present invention further includes a fluid circulation means 80 as shown in FIGS. 1 and 8. Such, the fluid circulation means 80 is for forcibly circulating the fluid when the fluid temperature of the first cooling chamber 10 rises above the set temperature, the pump 81, the temperature sensor 83 and the control unit 85 It includes.

The pump 81 is connected to the supply pipe 30 or the discharge pipe 50 to pump the fluid to force the flow through. At this time, the pump 81 may be operated by a power input from the outside.

The temperature sensor 83 is installed in the internal space 12 of the first cooling chamber 10 to sense the fluid temperature of the internal space 12.

The control unit 85 controls the operation of the pump 81 by determining whether the sensing temperature of the temperature sensor 83 is lower or higher than a preset reference temperature, and includes a programmable IC chip and electronic components connected to the IC chip. It consists of a controller that contains a PCB.

As such, the controller 85 recognizes the temperature sensed by the temperature sensor 83 in real time and compares the detected sensing temperature with a preset reference temperature. At this time, if the sensing temperature is lower than the reference temperature, the pump 81 is not operated. If the sensing temperature is higher than the reference temperature, the pump 81 is operated. Therefore, the pump 81 can be operated only when the sensing temperature is higher than the reference temperature to force the fluid to circulate. That is, the pump 81 forcibly circulates the fluid only when the temperature of the fluid flowing in the internal space 12 of the first cooling chamber 10 is higher than the set reference temperature, thereby easily cooling the solar module S. Can be. When the reference temperature is set high, electrical energy for operating the pump 81 can also be saved.

In addition, as shown in FIG. 8, the fluid circulation means 80 further includes a rapid cooling means 82. The rapid cooling means 82 circulates the fluid at a high speed when the fluid temperature of the first cooling chamber 10 is higher than the set reference temperature, thereby rapidly increasing the internal temperature of the first cooling chamber 10. In order to reduce, it includes a detector 84, a timer 86, and a high speed signal transmitter 88.

The detection unit 84 detects this when the temperature sensor 83 senses a temperature higher than the set reference temperature. The sensing unit 84 is electrically connected to the temperature sensor 83 and compares the sensing temperature detected by the temperature sensor 83 with the reference temperature set in the control unit 85 when the sensing temperature is higher than the reference temperature. Detect. In addition, when the sensing temperature is lower than the reference temperature, the detection is stopped.

The timer 86 counts the detection time of the detector 84. The timer 86 starts counting from the moment the sensing unit 84 senses and stops counting when the sensing unit 84 stops sensing.

The high speed signal transmitter 88 compares the detection time counted by the timer 86 with a preset reference time to determine whether the detection time exceeds the reference time, and when the detection time exceeds the reference time, the controller 85 pumps the pump. A high speed signal is sent to the control unit 85 to control the 81 at high speed for a set time. Here, the control unit 85 preferably stores a time set in advance to control the pump 81 at a high speed for a predetermined time.

That is, the first cooling chamber 10 fixed to the solar module S shown in FIG. 1 increases the internal temperature as high solar heat is continuously provided to the solar module S on a hot summer day. Accordingly, the detection unit 84 detects the moment when the temperature sensor 83 senses the high temperature, and the timer 86 counts the time (detection time) for which the high temperature is maintained from the time of detection, and the high-speed signal transmitting unit 88 compares the reference time and the detection time and transmits a high speed signal to the controller 85 when the detection time exceeds the reference time. Thereby, the control part 85 controls the pump 81 at high speed for the time set so that the pump 81 may circulate a fluid at high speed for a set time.

As such, the rapid cooling means 82 may circulate the fluid rapidly to lower the temperature of the first cooling chamber 10 when the high temperature in the cooling chamber 10 is maintained for a predetermined time. It is possible to prevent the performance of the solar module S from being lowered by high temperature solar heat and to increase the cooling efficiency of the first cooling chamber 10 that cools the solar module S. By lowering the fluid temperature of (10), it is possible to prevent the first cooling chamber 10 from being damaged by the pressure at which the fluid expands due to the high temperature.

As described above, the present invention can increase the performance and lifespan of the photovoltaic module S by cooling the photovoltaic module S while preventing the degradation of the photovoltaic module while being circulated by water cooling.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is to be understood, therefore, that the above description is intended to be illustrative, and not restrictive, and that the scope of the present invention will be defined by the appended claims rather than the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

S: Solar Module 10: First Cooling Chamber
11: top plate 12: interior space
13: bottom plate 15: bulkhead
20: chamber insulation means 21: heat insulation plate
23 cover portion 24 sealing means
26: insulation groove 27: bottom plate groove
28: packing ring 30: supply pipe
40: heat insulation means 41: heat insulation pipe
42: fixing member 44: disc
45: inner tube 46: outer tube
50: discharge pipe 60: filler
70: second cooling chamber 71: main body
73: supply container 75: recovery container
77: guide 79: cooling material
80: fluid circulation means 81: pump
83: temperature sensor 85: control unit

Claims (9)

A first cooling chamber filled with a fluid for cooling the solar module;
A supply pipe connected to one side of the first cooling chamber to supply a fluid to the inside of the first cooling chamber;
A discharge pipe connected to the other side of the first cooling chamber to conduct heat of the solar module to discharge the heated fluid to the outside of the first cooling chamber; And
And a second cooling chamber connected to both sides of the supply pipe and the discharge pipe and cooling the heated fluid discharged from the discharge pipe to supply the supply pipe to the supply pipe.
In order to cool the photovoltaic module by naturally circulating the fluid in a water-cooled manner due to convection caused by the specific gravity difference generated in the heat exchange process of the fluid in the first cooling chamber and the second cooling chamber,
The first cooling chamber is fixed in an inclined state while being in close contact with the rear surface of the solar module installed to be inclined toward the sun so that the fluid whose weight is lightened by the heat of the solar module is raised,
The second cooling chamber is inclined so that one side connected to the supply pipe is higher than the other side connected to the discharge pipe so that the fluid whose weight is lightened by the temperature difference of the fluid itself cooling the solar module is moved upward to the supply pipe.
The first cooling chamber
An upper plate fixed while being in surface contact with the rear surface of the solar module;
A lower plate which is connected to the upper plate and is coupled to the upper plate to protrude to one side so as to provide an inner space in which the fluid is filled, and the supply pipe and the discharge pipe are connected to both sides of the protrusion; And
In order to allow the fluid supplied from the supply pipe to flow through the discharge pipe while being dispersed in the internal space of the lower plate, both ends are spaced apart at a predetermined interval toward the supply pipe and the discharge pipe in the internal space, and the upper plate is in contact with the upper plate to transfer heat to the fluid. It includes; a plurality of partitions formed in the lower plate,
The first cooling chamber
Chamber insulation means for preventing the external temperature is transmitted to the fluid flowing through the inner space;
Chamber insulation means
Insulation plate is bonded to the lower plate coupled; And
And a cover part which protrudes from one side of the heat insulating plate to cover the protrusions of the bottom plate so that the heat insulating space is formed outside the protrusions of the bottom plate. delete The method of claim 1, wherein the first cooling chamber is
Further comprising a sealing means for sealing the edge of the insulation plate to the edge of the lower plate,
Sealing means
An insulation groove formed along an edge of the insulation plate;
A lower plate groove formed along an edge of the lower plate so as to face the insulation groove; And
Circulating cooling device for a photovoltaic module comprising; a packing ring which is inserted into the insulating groove and the lower plate groove at the same time to seal the edge of the insulating plate and the edge of the lower plate. According to claim 1, wherein the supply pipe or the discharge pipe
It further comprises a heat insulating means for preventing the external temperature is transmitted to the fluid flowing through,
Insulation means
An insulation pipe composed of an inner diameter larger than the diameter of the supply pipe or the discharge pipe so that the supply pipe or the discharge pipe is inserted;
And a plurality of fixing members fixed to both ends of the heat insulating pipe and to both sides of the supply pipe or the discharge pipe in a state of preventing the outer circumferential surface of the supply pipe or the discharge pipe from contacting the inner circumferential surface of the heat insulating pipe. The method of claim 4, wherein the fixing member
A disc having a through hole formed so that the supply pipe or the discharge pipe passes therethrough;
A cylindrical inner tube extending from the through hole of the disc and fitted into the outer circumferential surface of the supply tube to be fixed; And
And a cylindrical outer tube extending from an edge of the disc to be inserted into and fixed to an end of the insulation pipe. The method of claim 4 wherein the thermal insulation means
And a filler filled between the end of the heat insulation pipe and the outer circumferential surface of the supply pipe to block the movement of heat between the end of the heat insulation pipe and the outer circumferential surface of the supply pipe.
The filler is
Circulating cooling device for a solar module, characterized in that any one of styrofoam, cork or foamed plastic. The method of claim 1, wherein the second cooling chamber is
A main body having a receiving space formed therein and connected to both sides of the supply pipe and the discharge pipe;
A supply cylinder connected to the supply pipe in a state accommodated in the accommodation space of the main body to supply fluid to the supply pipe;
A recovery container which is connected to the discharge pipe in a state of being accommodated in the accommodation space of the main body while being spaced apart from the supply container and recovers the fluid discharged from the discharge pipe;
A plurality of guide tubes connected at both ends to the supply and recovery containers while being spaced at a predetermined interval so as to guide the fluid recovered to the recovery container to the supply container; And
And a cooling material filled in the accommodation space of the main body to be in contact with the plurality of guide tubes to cool the plurality of guide tubes. The apparatus of claim 1, further comprising a fluid circulation means for forcibly circulating the fluid when the fluid temperature of the first cooling chamber rises above the set temperature.
Fluid circulation means
A pump connected to the supply pipe or the discharge pipe to pump the fluid and forcibly flow through the pump;
A temperature sensor installed in an inner space of the first cooling chamber to sense a fluid temperature of the inner space; And
And a control unit for controlling the operation of the pump by determining whether the sensing temperature of the temperature sensor is lower than or higher than a preset reference temperature. The method of claim 8, wherein the fluid circulation means for rapid cooling to circulate the fluid at high speed to rapidly lower the internal temperature of the first cooling chamber when the fluid temperature of the first cooling chamber is maintained for a predetermined time higher than the set reference temperature Means, further comprising;
Rapid cooling means
A sensing unit for sensing a temperature higher than a set reference temperature;
A timer counting a sensing time of the sensing unit; And
By comparing the detection time counted by the timer with the reference time, it is determined whether the detection time exceeds the reference time, and when the detection time exceeds the reference time, the controller sends a high speed signal to the controller to control the pump at high speed for a set time. Recirculating cooling device for a photovoltaic module comprising a signal transmitter.

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